This term is a lot more technical, as it refers to the specific classification of low-fire range ceramics. The term itself can be used to describe the piece of the ceramics, as well as the actual process of creating one. One of the most crucial points in the production process is the fact that while the piece is still hot, it is moved from the kiln directly into the raku pit.

Thanks to the combustible materials in the pit, which immediately ignite, the piece inside of the closed pit gets all sorts of fascinating and unique finishes. Those types of finishes are impossible to replicate, making those pieces truly one-of-a-kind. It is also important to mention that while the technique originated in Japan and was used as a fast method for creating small vessels, in the West it was used mainly for creating decorations.